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Analysis of Liquid Smoke Grade Characteristics from Coconut Shells and Palm Kernel Shell Waste Through a Slow Pyrolysis Process

DOI : 10.5614/j.eng.technol.sci.2024.56.4.10
Bazlina Dawami Afrah (1), M. Ihsan Riady (2), Panida Payomthip (3), Rizky Vasya Ramadhanty (4), Fadhilah Rizki (5), Muhammad Luthfi Alfayyadh (6)
(1) Department of Chemical Engineering, Universitas Sriwijaya, Jalan Raya Palembang-Prabumulih KM 32, Palembang 30139, Indonesia , Indonesia ,
(2) Department of Mechanical Engineering, Universitas Sriwijaya, Jalan Raya Palembang-Prabumulih KM 32, Palembang 30139, Indonesia , Indonesia ,
(3) Material Cycles Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba 305-8506, Ibaraki, Japan, Japan ,
(4) Department of Chemical Engineering, Universitas Sriwijaya, Jalan Raya Palembang-Prabumulih KM 32, Palembang 30139, Indonesia , Indonesia ,
(5) Department of Chemical Engineering, Universitas Sriwijaya, Jalan Raya Palembang-Prabumulih KM 32, Palembang 30139, Indonesia , Indonesia ,
(6) Department of Chemical Engineering, Universitas Sriwijaya, Jalan Raya Palembang-Prabumulih KM 32, Palembang 30139, Indonesia , Indonesia
545-558
Abstract : 6807
PDF : 1864
DOI: https://doi.org/10.5614/j.eng.technol.sci.2024.56.4.10

Facile and Environmentally Friendly Synthesis of Low-defect Few-Layers Graphene (FLG) Using Combined Shear Exfoliation Methods

DOI : 10.5614/j.eng.technol.sci.2025.57.5.4
Amun Amri (1), Revika Wulandari (2), Dhina Fabryza (3), Sunarno Sunarno (4), Desi Heltina (5), Syaiful Bahri (6), Deki Sarma (7), Hussein A. Miran (8), M. Mahbubur Rahman (9), Mohammednoor Altarawneh (10), Zhong Tao Jiang (11)
(1) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, , Indonesia ,
(2) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, , Indonesia ,
(3) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, Indonesia , Indonesia ,
(4) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, Indonesia , Indonesia ,
(5) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, Indonesia , Indonesia ,
(6) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, Indonesia , Indonesia ,
(7) Department of Chemical Engineering, University of Riau, Pekanbaru, Riau, 28293, Indonesia , Indonesia ,
(8) Department of Physics, College of Education for Pure Science, Ibn Al-Haitham, University of Baghdad, Baghdad, 10071, , Iraq ,
(9) Department of Physics, Jahangirnagar University, Savar, Dhaka, 1342, , Bangladesh ,
(10) Department of Chemical and Petroleum Engineering, United Arab Emirates University, 15551, United , United Arab Emirates ,
(11) Surface Analysis and Materials Engineering Research Group, College of Science, Health, Engineering and Education, Murdoch University, Murdoch, WA 6150, Australia
613-626
Abstract : 951
PDF : 559
DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.5.4

Properties of Hydrochar Derived from Arabica Coffee Agro-Industry Residues under Wet Torrefaction Method

DOI : 10.5614/j.eng.technol.sci.2024.56.6.2
Nyakty Shalihah (1), Adi Setiawan (2), Muhammad Muhammad (3), Shafira Riskina (4)
(1) Magister Program in Renewable Energy Engineering, Faculty of Engineering, Universitas Malikusssaleh, Jalan Batam, Bukit Indah 24352, Lhokseumawe, Indonesia ,
(2) Mechanical Engineering, Faculty of Engineering, Universitas Malikusssaleh, Jalan Batam, Bukit Indah 24352, Lhokseumawe, Indonesia ,
(3) Chemical Engineering, Faculty of Engineering, Universitas Malikusssaleh, Jalan Batam, Bukit Indah, 24352, Lhokseumawe, Indonesia ,
(4) Center of Excellence-Technology of Natural Polymer and Recycle Plastics (CoE-TechnoPlast) Universitas Malikussaleh, Jalan Batam, Bukit Indah, 24352, Lhokseumawe, Indonesia
692-703
Abstract : 1348
PDF : 532
DOI: https://doi.org/10.5614/j.eng.technol.sci.2024.56.6.2

Developing Carbon Nanofibers from Gnetum Gnemon Linn Pericarp Using Dual Activators KOH And Melamine as Innovative Electrode Materials for Supercapacitors

DOI : 10.5614/j.eng.technol.sci.2025.57.6.2
Rakhmawati Farma (1), Hardini Chania Putri (2), Irma Apriyani (3), Luqyana Adha Azwat (4), Awitdrus Awitdrus (5), Mohamad Deraman (6), Ari Sulistyo Rini (7), Rahmondia Nanda Setiadi (8), Erman Taer (9)
(1) Department of Physics, University of Riau, Kampus Bina Widya, Km. 12,5 Simpang Baru Pekanbaru, 28293, Riau, Indonesia ,
(2) Department of Physics, University of Riau, Kampus Bina Widya, Km. 12,5 Simpang Baru Pekanbaru, 28293, Riau, Indonesia ,
(3) Department of Physics, University of Riau, Kampus Bina Widya, Km. 12,5 Simpang Baru Pekanbaru, 28293, Riau, Indonesia ,
(4) Department of Physics, Universitas Indonesia, Kampus UI Depok, Margonda Raya, Kampus Baru, Depok 16424, Indonesia ,
(5) Department of Physics, University of Riau, Kampus Bina Widya, Km. 12,5 Simpang Baru Pekanbaru, 28293, Riau, Indonesia ,
(6) School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, , Malaysia ,
(7) Department of Physics, University of Riau, Kampus Bina Widya, Km. 12,5 Simpang Baru Pekanbaru, 28293, Riau, Indonesia ,
(8) Department of Physics, University of Riau, Kampus Bina Widya, Km. 12,5 Simpang Baru Pekanbaru, 28293, Riau, Indonesia ,
(9) Department of Physics, University of Riau, Kampus Bina Widya, Km. 12,5 Simpang Baru Pekanbaru, 28293, Riau, , Indonesia
747-759
Abstract : 1069
PDF : 502
DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.6.2

Sustainable thermal insulation of geopolymer blocks using solid waste: palm oil ash and palm oil clinker

DOI : 10.5614/j.eng.technol.sci.2025.57.6.8
Abideng Hawa (1), Preecha Salaemae (2)
(1) Department of Civil Engineering, Faculty of Engineering, Princess of Naradhiwas University, Thailand ,
(2) , Thailand
844-858
Abstract : 620
PDF : 717
DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.6.8

The Effect of Ignition Timing on Combustion of Ammonia/Ethanol Mixtures in Spark-Assisted Compression Ignition Engine with a Sub-chamber

DOI : 10.5614/j.eng.technol.sci.2025.57.6.1
Takanobu Okada (1), Mitsuhisa Ichiyanagi (2), Emir Yilmaz (3), Takashi Suzuki (4), Hikaru Shiraishi (5), Eric Le Roy Ngwompe Souop (6), Evan Widjaja (7), Jason Sutedjo (8), Christian Dennis Marcelo (9), Ferdinand Ronaldo Tjiotijono (10), Gabriel Jeremy Gotama (11), Willyanto Anggono (12)
(1) Postgraduate School of Science and Technology, Sophia University, Tokyo 102-8554, Japan ,
(2) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, Tokyo 102-8554, , Japan ,
(3) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, Tokyo 102-8554, , Japan ,
(4) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, Tokyo 102-8554, , Japan ,
(5) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, Tokyo 102-8554, , Japan ,
(6) Graduate School of Science and Technology, Sophia University, Tokyo 102-8554, Japan ,
(7) Mechanical Engineering Department, Petra Christian University, Surabaya 60236, Indonesia ,
(8) Mechanical Engineering Department, Petra Christian University, Surabaya 60236, Indonesia ,
(9) Mechanical Engineering Department, Petra Christian University, Surabaya 60236, Indonesia ,
(10) Graduate School of Science and Technology, Sophia University, Tokyo 102-8554, Japan ,
(11) Centre for Sustainable Energy Studies, Petra Christian University, Surabaya 60236, , Indonesia ,
(12) Mechanical Engineering Department, Petra Christian University, Surabaya 60236, Indonesia
735-746
Abstract : 1589
PDF : 1298
DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.6.1

Analysis of Gravity Data for Basement Depth Estimation of the Western Part of Java Island, Indonesia

DOI : 10.5614/j.eng.technol.sci.2026.58.1.1
Riski Ananda (1), Na'ila Yuni Azhari (2), Tony Rahadinata (3), Hendra Grandis (4)
(1) Graduate Program in Geophysical Engineering, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesa 10 Bandung 40132, , Indonesia ,
(2) Graduate Program in Geophysical Engineering, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesa 10 Bandung 40132, Indonesia ,
(3) Graduate Program in Geothermal Engineering, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesa 10 Bandung 40132, Indonesia ,
(4) Center for Mineral Coal and Geothermal Resources, Geological Agency, Ministry of Energy and Mineral Resources Indonesia, Jalan Soekarno-Hatta 576 Bandung 40286, , Indonesia
1-16
Abstract : 1408
PDF : 1032
DOI: https://doi.org/10.5614/j.eng.technol.sci.2026.58.1.1

Two-electron CO2 Reduction Reaction Mechanism on Nickel Cobalt Phosphate Surface Doped by Transition Metal: A DFT Study

DOI : 10.5614/j.eng.technol.sci.2026.58.2.3
Raka Primipara (1), Dzaki Ahmad Syaifullah (2), Muhammad Arkan Nuruzzahran (3), Dyah Puspasari Wijayanti (4), Hamad AlMohamadi (5), Nadhratun Naiim Mobarak (6), Fadjar Fathurrahman (7), Adhitya Gandaryus Saputro (8)
(1) Graduate Program of Engineering Physics, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung, West Java 40132, Indonesia ,
(2) Graduate Program of Engineering Physics, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung, West Java 40132, Indonesia ,
(3) Graduate Program of Engineering Physics, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung, West Java 40132, Indonesia ,
(4) Graduate Program of Engineering Physics, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung, West Java 40132, Indonesia ,
(5) Department of Chemical Engineering, Faculty of Engineering, Islamic University of Madinah, Prince Naif Bin Abdulaziz Road, Al Jamiah, Madinah 42351, , Saudi Arabia ,
(6) Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Selangor 43600, , Malaysia ,
(7) Quantum and Nano Technology Research Group, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung, West Java 40132, Indonesia ,
(8) Research Centre for Nanoscience and Nanotechnology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung, West Java 40132, , Indonesia
186-201
Abstract : 2277
PDF : 427
DOI: https://doi.org/10.5614/j.eng.technol.sci.2026.58.2.3

An Experimental Study on the Structural Behavior of RC Columns when Using Crumb Rubber Concrete Combined with Recycled Steel Fibers

DOI : 10.5614/j.eng.technol.sci.2026.58.3.10
Hasan A. Alasmari (1)
(1) Civil Engineering Department, College of Engineering, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia, Saudi Arabia
461-474
Abstract : 733
PDF : 285
DOI: https://doi.org/10.5614/j.eng.technol.sci.2026.58.3.10

Comparative Analysis of Photogrammetry Tools for Monitoring Trench and Pipeline Progress Towards Sustainable Construction

DOI : 10.5614/j.eng.technol.sci.2026.58.3.9
Muhammad Hassaan Farooq Khan (1), Wesam Salah Alaloul (2), Muhammad Ali Musarat (3), Abdul Mateen Khan (4), Socheatra Soeung (5)
(1) Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskanda, Perak, 32610, Malaysia ,
(2) Department of Civil and Environmental Engineering, United Arab Emirates University, Al Ain, 15551,, United Arab Emirates ,
(3) Faculty of Civil and Mechanical Engineering, Riga Technical University, Kipsalas Street 6A, LV-1048 Riga, , Latvia ,
(4) Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskanda, Perak, 32610, , Malaysia ,
(5) Department of Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, 32610, , Malaysia
442-460
Abstract : 419
PDF : 384
DOI: https://doi.org/10.5614/j.eng.technol.sci.2026.58.3.9
11 - 20 of 23 items << < 1 2 3 > >>